Writing instrument



R. MLLER WRITING INSTRUMENT Filed Ma'rh 7 Patented Nov. 25, 191249.

UNITED STATES REINHARD MLLER, or ELM, NEAR cAssEL, GERMANY.

` WRITING INSTRUMENTx yApplication filed March 7, 1924. Serial No. 697,610.

To all whom t may concern.' f

Be it known that I, REINHARU MLLER, residing at Elm, near Cassel, Germany, have invented certain new and useful Improvements in `Writing Instruments, of which the followingis a specification.

This invention relates to writing instruments such as pen-holders, writing holders and writing pens of all kinds,fin which the pen nib, adjustable to various angles, is arranged in an angle boss lying` before the fingers of the hand so that it is held in a position deviating fromthe axis of the holder. In such writing instruments the holder boss always takes various angular positions according to the angular adjustment of the pen nib, when the nib is yin its correct writing position, that is with the concave side downwards.' The nossibility of using the writing instrument or different kinds of writing follows directly on these different angular positions of the boss. This invention has for its object to give the writing instrument the power to g'o over automatically to the position which the angular adjustment of the nib for the time being requires for the proper writing position, sothat the writing instrument is in and only in the position of stable balance. By this means the handling or" the instrument is considerably eased, since the hand tires when the instrument must be forcibly held the whole time in the proper position. In order to relieve this, pen-holders have already been made angular and equipped with a number of even surfaces, corresponding with the various angular positions of the boss, handling, however, being again, in another way, disturbed and apart from this, the tendency of the holder to leave the proper writing position, it will be understood is also not removed.

In order to produce this self-acting power of the writing instrument to go over steadily into the necessary position corresponding with the writing adjustment, the pen according to the invention is so adjustably arranged that its point on turning round the bearing axis of the nib describes a small circle about the point of intersection of the gravity axis of the instrument with the bearing axis o-f the nib.

A fuller explanation will now be given with reference to the accompanying drawings. f

Figure l is an elevat-ion.

Figures 2 to 5 are cross sections.

Figures 6, 7 and 8 are elevations of the nib.

Figure 9 is a cross section on the line 9 9 of Figure l.

Figure l shows the instrument which comprises a holder a (shown broken off) and a nib c. 5 is the known angle boss in which the nib c is carried. For this purpose a pin Z shown in dotted lines, is mounted in -a larger cylindrical bore so that anannular slot is formed in which the shaft of the nibl c is iitted. The depth of entry in the example shown is limited by a band j on the nib c so that the nib point lways stands out sufficiently yfromy the oss In Figure 1 it is assumed that the boss Z) is turned directly upwards and that the nib c is in the proper writing position,that is, with its concave side underneath facing the writing surface a?. The gravity axis of the writing instrument, which owing to the boss b is somewhat displaced from the central axis of the holder shaft a, is indicated by jz/ and the point of intersection between the bearing axis of the nib c with the gravity axis is indicated by e. If the nib c he given successively the various angle positions, so that it finally describes an angle of 360'o about its bearing axis, the point of the nib passes through a small circle having the intersection point e as its centre, (This small circleshould really appear in Figure l as a straight stroke, but for the purpose of illustration is shown as a small ellipse).

yIn Figures 2 to 5, are shown in section on the line 2 2 the four chief positions of the writing instrument. In Figure 2, as iu Figure 1, the grip 5 is perpendicularly upwards. In Figure 3 the grip is turned through 90O so that it lies in the right hand side of the holder axis. In Figure 4, in which the grip has been turned through a further 90o, it is pointing perpendicularly downwards. In Figure 5 the grip turned through yet another 90O lies to the leftsideof the holder axis. The pen nib is in all these figures shown dotted, so that its position can he seen. Above all, the nib is in the proper Writing posit-ion, that 1s with it concave side downwards. The nib point rests on 'the Writing surface;Y the` rection other than that corresponding to the' particular angular pjosition oi' the nib, then the instrument would automatically swing into the correspondingposition, since only in this position is stable balance possible.

lf, for example, the nib Were inserted as in Figure 4, but the grip turned' in an upwurdgdire-,ction as in Figure 2, so that the foncave side were turned wrongly, namely, in an upward direction, -then the gravity axis g/'Would be above4 the point 'of support, that is above the point of the nib; the instrument would be in stable balance but at the least movement would tend to swing round, so as to take up the proper Writing position for the nib corresponding to Figure 2.

of the nih Which ensures a proper projection of the nib point, and sol that the point is constrained to describe a circle in passing through the various angle positions; various means can naturally be used Jfor this. For ensuring the projection, a. band on the nib, as already described, and as shown in Figure .6, a simple method.` lor. allowing` the nib point to khe turned through acircle a Vmethod ready to hand is the Well known cylindrical rind and annular Slot described above. In order to hold the nib firmly in this slot for each position, a pressed out tongue can be formed in the shank of the nib as shown in Figure 6. For securing the correct amount of projection oit' the nib point, it will also suiiiceto provide a mark on the shank of the `nib which shows the correft depth of insertion. In order to use the same nib for la number of holders, which require different depths ot insertion, ay nib according to Figure 7 may bekused having several marks preferably numbered, for indicating the depth of the nsert-ioin Having non7 particularly Vde escribed and ascertained the nature of my said` invention and in what manner the same ,isgto` be peil'- forined, l declare that Wha-t I claim is o A writing instrument embodying a hold er and a nib, the holder having a, boss` at an angle to the longitudinal axislof the holder, the gravity axis of the instrument being in all positions oi the instrument behind the nib point and also behind thepoiritf ofsup IAn important point is the arrangement.

port around which the instrument @van Swing if loosely held in thehand.

yDated this 175th day of lilebruary,i923.`

REINHARD/MLLER.; 

